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Simplifying 4 + -8x = -4(2x + -1) Reorder the terms: 4 + -8x = -4(-1 + 2x) 4 + -8x = (-1 * -4 + 2x * -4) 4 + -8x = (4 + -8x) Add '-4' to each side of the equation. 4 + -4 + -8x = 4 + -4 + -8x Combine like terms: 4 + -4 = 0 0 + -8x = 4 + -4 + -8x -8x = 4 + -4 + -8x Combine like terms: 4 + -4 = 0 -8x = 0 + -8x -8x = -8x Add '8x' to each side of the equation. -8x + 8x = -8x + 8x Combine like terms: -8x + 8x = 0 0 = -8x + 8x Combine like terms: -8x + 8x = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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